Timepiece



Jan. 10, 1956 e. BRIDEVAUX 2,729,934

TIMEPIECE ed Oct. 7, 1952 If? vnfan United States Patent TIMEPIECE Georges Bridevaux, Tavannes, Switzerland, assignor to Tavannes Watch Co. S. A., Tavannes, Switzerland, a firm Application ()ctober 7, 1952, Serial No. 313,411

Claims priority, application Switzerland November 22, 1951 2 Claims. c1. 58-104) The present invention relates to a time-piece the frame of a which comprises at least two plates held at a distance one from the other by pillars.

According to a previous object of the invention, one at least of these pillars is provided with means allowing adjustment, at this place, the distance between the plates, in view of adjusting the axial play of a shaft rotatably mounted in the frame, in the proximity of said pillar.

The annexed drawing shows, by way of example, one embodiment of the object of the invention, and a variation.

Fig. 1 is a plane view of a clockwork for a small clock.

Fig. 2 is a sectional view along line IIll of Fig. 1, on an enlarged scale and,

Fig. 3 is a view similar to this of Fig. 2, of a variation.

The time-piece shown comprises a bass-plate 1 to which is secured, by means of screws 2, a three-quarter plate 3. The screws 2 are screwed in axial holes provided in pillars riveted on the plate 1. The cock 4 is secured to the three-quarter plate 3 by means of one of the screws 2 screwed in a pillar 5. This latter shows a thinner part So on which is fitted the three-quartcr plate 3 and the cock 4 and under which is provided a threading 6. A nut 7 is screwed on this threading. The cock and the three-quarter plate 3 are tightened between this nut 7 and the head of the screw 2. By screwing more or less the nut 7, it is thus possible to modify the distance between the plate 1 and the three-quarter plate 3 and consequently to modify the distance between the plate 1 2,729,934 Patented Jan. 10, 1956 and the cock 4, that allows toadjust the axial play of the staff of the balance wheel 8.

The variation of Fig. 3 makes it possible to rise the same purpose. The shoulder 9a of the pillar 9 serves as a bearing for an elastic concave washer 1t pressing the three-quarter plate 3 and the cock 4 against the head of the screw 2.

What I claim is:

1. In a time piece, the combination of a first plate, at least one pillar rigid with said plate and provided with a tapping at its free end and with an outer depression in the immediate vicinity of said tapping, a second plate system including a three-quarter plate and a cock in contacting relationship with the latter, said plate and cock being provided with apertures engaging the tapped end of the pillar, a headed screw engaging the tapping in the pillar and the head of which engages the outer surface of the second plate system and means engaging the depression in the pillar and urging the second plate system against the head on the screw.

2. In a time piece, the combination of a first plate, at least one pillar rigid with said plate and provided with a tapping at its free end and with an outer depression in the immediate vicinity of the tapping, a second plate system including a three-quarter plate and a cock in contacting relationship with the latter, said plate and cock being provided with an aperture engaging the tapped end of the pillar, a headed screw engaging the tapping in the pillar and the head of which engages the outer surface of the second plate system, and a blade spring engaging the depression on the pillar, and the outer edge of which urges the second plate system into contact with the head of the screw.

References Cited in the file of this patent UNITED STATES PATENTS 347,737 Pruim Aug. 17, 1886 580,046 Harrington Apr. 6, 1897 639,177 Kurtz Dec. 12, 1899 863,725 Kirstein Aug. 20, 1907 1,040,023 Scheer Oct. 1, 1912 FOREIGN PATENTS 9,526 Switzerland Dec. 26, 1894 

